Year,Value,Northeast U.S.,Precip,Aug,(in.)
1940,3.154
1941,3.543
1942,3.398
1943,4.064
1944,2.968
1945,3.314
1946,4.156
1947,2.773
1948,3.399
1949,3.813
1950,4.051
1951,3.362
1952,4.06
1953,2.811
1954,5.407
1955,7.586
1956,3.666
1957,1.787
1958,4.06
1959,4.377
1960,2.872
1961,3.552
1962,3.693
1963,4.157
1964,3.378
1965,4.273
1966,2.83
1967,4.202
1968,2.298
1969,3.16
1970,2.931
1971,4.603
1972,2.756
1973,3.902
1974,3.868
1975,4.275
1976,5.002
1977,4.719
1978,4.52
1979,4.918
1980,3.863
1981,3.6
1982,3.433
1983,4.328
1984,3.755
1985,3.588
1986,5.019
1987,4.083
1988,4.841
1989,4.165
1990,4.862
1991,5.267
1992,4.203
1993,2.809
1994,5.727
1995,2.689
1996,2.495
1997,4.353
1998,3.296
1999,3.198
2000,3.464
2001,2.63
2002,2.133
2003,4.577
2004,5.379
2005,4.081
2006,3.939
2007,3.962
2008,3.771
2009,3.905
2010,3.286
2011,7.333
2012,3.116
2013,3.758
2014,3.476
2015,2.472
2016,3.812
2017,2.99
2018,5.253
2019,3.7
2020,3.528
2021,4.649
2022,3.457
2023,5.969
2024,5.436
2025,1.819